Data cleaning courses can help you learn techniques for identifying and correcting errors in datasets, handling missing values, and standardizing data formats. You can build skills in data validation, outlier detection, and transforming raw data into a usable format. Many courses introduce tools like Python libraries such as Pandas and NumPy, as well as software like OpenRefine, that support executing data cleaning tasks efficiently and ensuring data quality for analysis.

University of Maryland, College Park
Skills you'll gain: Customer Retention, Loyalty Programs, Marketing Budgets, Brand Loyalty, Customer Acquisition Management, Competitive Analysis, Customer Analysis, Customer Relationship Management, Customer Insights, Data-Driven Marketing, Customer Relationship Building, Customer Data Management, Marketing Channel, Marketing Analytics, Online Advertising, Customer Engagement, Marketing Effectiveness, AI Personalization, Data Ethics, Digital Marketing
★ 4.6 (56) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Embeddings, Natural Language Processing, Text Mining, Applied Machine Learning, Classification Algorithms, Unsupervised Learning, Dimensionality Reduction
Intermediate · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: Miro AI, Google Gemini, Generative AI, Collaborative Software, Anthropic Claude, AI Product Strategy, Innovation, Product Automation, AI Enablement, Business Process Automation, Workflow Management, Technology Strategies, Productivity Software, AI Integrations, Application Design, Prototyping, Video Editing
★ 2.7 (6) · Beginner · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Management Accounting, Performance Measurement, Capacity Management, Cost Accounting, Organizational Strategy, Performance Analysis, Operational Analysis, Financial Accounting, Cost Control, Budget Management, Strategic Decision-Making, Internal Controls, Account Strategy, Accounting, Financial Controls, Management Reporting, Financial Data, Budgeting, Decision Making
★ 3.9 (118) · Beginner · Course · 1 - 4 Weeks

Advancing Women in Tech
Skills you'll gain: Amazon Web Services, Cloud Computing, Cloud Management, Cloud Services, Amazon S3, Cloud Platforms, Public Cloud, Amazon Elastic Compute Cloud, Cloud Computing Architecture, Technical Product Management, AWS Identity and Access Management (IAM), AWS CloudFormation, AWS Kinesis, Amazon Redshift, Cloud Security, Software Architecture, Amazon CloudWatch, Cloud Storage, Serverless Computing, Product Management
★ 4.5 (92) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Flutter (Software), Scalability, Code Reusability, Software Design, Application Design, Dataflow, Program Development, Computational Logic, Functional Design, Application Development, Computer Programming, Software Architecture, Web Applications, Automation, Data Analysis
Beginner · Specialization · 1 - 3 Months

University of Leeds
Skills you'll gain: Cryptographic Protocols, Cryptography, Encryption, Public Key Cryptography Standards (PKCS), Data Security
★ 4.4 (16) · Beginner · Course · 1 - 4 Weeks

University of California San Diego
Skills you'll gain: Internet Of Things, Embedded Software, Embedded Systems, Digital Signal Processing, Peripheral Devices, Computer Hardware, Wireless Networks, Display Devices, Communication Systems, Systems Development, Application Development
★ 4.5 (159) · Mixed · Course · 1 - 3 Months

Skillshare
Skills you'll gain: Animations, 3D Modeling, 3D Assets, Computer Graphics, Visualization (Computer Graphics), Computer Graphic Techniques, Post-Production, Autodesk, Graphical Tools, Motion Graphics, File Management, Timelines, Graphics Software, UI Components, User Interface (UI), Creativity, Video Production, Software Versioning, Software Installation, System Configuration
★ 4.5 (19) · Beginner · Specialization · 3 - 6 Months

Universidad Nacional Autónoma de México
Skills you'll gain: Environmental Issue, Physical Science, Environment, Environmental Science, Geospatial Mapping, Physics, Simulation and Simulation Software, Experimentation, Scientific Visualization
★ 4.8 (381) · Mixed · Course · 1 - 4 Weeks

Kennesaw State University
Skills you'll gain: Network Security, Network Administration, Security Management, Firewall, Cyber Attacks, Network Monitoring, Cybersecurity, General Networking, Cyber Security Assessment, Network Protocols, Virtual Private Networks (VPN), Wireless Networks, Vulnerability Assessments, Cloud Security, System Monitoring, Continuous Monitoring, TCP/IP, Intrusion Detection and Prevention, Cloud Computing, Threat Detection
★ 4.8 (238) · Beginner · Course · 1 - 3 Months

Skills you'll gain: PL/SQL, Oracle Databases, Stored Procedure, SQL, Database Development, Performance Tuning, Database Application, Database Management, Business Logic, Data Access, Code Reusability, Maintainability, Debugging
Mixed · Course · 1 - 4 Weeks